A gusseted pant

Abstract

A kind of pants of inserting piece bottom, including front width piece, back width piece and bottom inserting piece;The first distance is preset to the front wave bottom of the front width piece upwards, and first splicing edge is formed by extending the preset second distance to the waist direction along the inner skeleton line;The third distance is preset to the back wave bottom of the back width piece upwards, and second splicing edge is formed by extending the preset second distance to the waist direction along the inner skeleton line;One side edge of the bottom inserting piece is sewn with the first splicing edge, and the other side edge of the bottom inserting piece is sewn with the second splicing edge;The outline of the bottom inserting piece is symmetrical structure, and the symmetrical reference is the longitudinal axis of pants;And the edge of bottom area formed after the bottom inserting piece is sewn with front width piece and back width piece is straight line form.

Description

Technical Field

[0001] This utility model relates to the field of clothing pattern design technology, specifically to a type of pants with an insert crotch, which is particularly suitable for fitted and loose-fitting children's sports pants, aiming to optimize the comfort and freedom of movement of the pants and reduce fabric waste. Background Technology

[0002] In the apparel industry, trousers are a core item for everyday wear, and their design directly affects the wearing experience and appearance. Regular trousers are mainly composed of front and back panels joined together. The technical treatment of the crotch area, where the hips meet the thighs, is a challenging aspect of the design.

[0003] Because the human hips and thighs have a three-dimensional structure, while conventional trouser panels are flat, it's difficult for the flat panels to perfectly conform to the three-dimensional curves of the body when joining the front and back panels at the seam—the curved edges around the upper thigh—to wrap the thigh. To meet the body's needs for hip circumference, hip circumference, and total front and back hem length, the industry uses methods such as heating and stretching the fabric to adjust the panel shape and improve issues like whiskering wrinkles at the front and back hem trapping.

[0004] However, the crotch shaping process demands a high level of skill from operators and is significantly affected by fabric characteristics, making it difficult to guarantee consistency in mass production. Ultimately, most fitted and slightly loose trousers still suffer from a bulky silhouette, especially on the inner thighs, leading to discomfort and a feeling of restriction during exercise; while loose and wide-leg trousers, due to their ample space, do not exhibit these problems and require no special treatment. Therefore, there is an urgent need for a technical solution that can optimize the crotch shape without relying on complex processes to address the pain points of fitted and slightly loose trousers. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the crotch design of fitted and loose pants in the prior art, and to provide a crotch insert pants, including a front panel, a back panel and a crotch insert. The first splicing edge is formed by extending a predetermined first distance upward from the bottom of the front wave of the front panel, along the inner seam towards the waistband, and then extending a predetermined second distance upward. The second splicing edge is formed by extending the second preset distance from the bottom of the back wave of the back panel upwards along the inner seam towards the waistband at a preset third distance. One edge of the bottom insert is sewn to the first splicing edge, and the other edge of the bottom insert is sewn to the second splicing edge. The crotch insert has a symmetrical outline, with its symmetry reference being the longitudinal centerline of the pants; and the crotch area formed by sewing the crotch insert with the front and back panels has a straight edge.

[0006] Preferably, the preset first distance is 1.5cm, the preset second distance is 14cm, and the preset third distance is 3.8cm.

[0007] Preferably, the front panel includes an upper front panel and a lower front panel, which are sewn together along the inner seam line, and the sewing position is adapted to the first splicing edge to keep the overall pattern of the front panel unchanged.

[0008] Preferably, the back panel includes an upper back panel and a lower back panel, which are sewn together along the inner seam line, and the sewing position is adapted to the second splicing edge to keep the overall pattern of the back panel unchanged.

[0009] Preferably, both the first and second splicing edges are located in the concealed area inside the pants, and the length of the first splicing edge is the same as the length of the corresponding side edge of the crotch insert, and the length of the second splicing edge is the same as the length of the corresponding side edge of the crotch insert.

[0010] Preferably, the insert crotch pants are fitted or slightly loose-fitting and are suitable for children's sports pants.

[0011] This invention transforms the conventional two-dimensional planar cutting of pants into three-dimensional cutting through the structural design of the crotch insert, breaking the fixed constraints between the front and back girth width and hip circumference. The pattern can be flexibly adjusted according to the thickness of the human hip and thigh size, avoiding the problems of the back crotch bottom getting stuck and the front crotch bottom wrinkling. It conforms to the curves of the human body and is more comfortable to wear.

[0012] The crotch insert optimizes the shape of the front and back panels, providing ample room for movement on the inner thighs and reducing the restriction of leg movement on regular pants. It is especially suitable for sports such as running and jumping, allowing for greater freedom of movement.

[0013] Through comparative verification of material layout data (taking size 120 boys' down pants as an example), the material usage per set for the regular pattern is 66.894cm, with a fabric utilization rate of 74.5%; after adopting the insert-type bottom design of this utility model, the material usage per set is reduced to 62.069cm, and the fabric utilization rate is increased to 81.2%. The same style of pants can save 6%-7% of the fabric cost, resulting in significant economic benefits during mass production. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view of the present utility model. Figure 2 This is a view of the back of the present utility model. Figure 3 This is a structural diagram of the insert plate assembly for the bottom of this utility model.

[0016] Explanation of markings in the diagram: 1-Front panel, 2-Back panel, 3-Crotch insert, 4-Front wave, 5-Inner seam, 6-First seam, 7-Back wave, 8-Second seam, 9-Vertical center line of pants, 10-Straight line shape. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-2 As shown, this embodiment uses size 120 boys' fitted sports pants as a specific application object, and elaborates on the implementation process of the insert crotch bottom pants. The specific steps are as follows: I. Cut Piece Positioning Based on the standard pattern of size 120 boys' fitted sports pants, the length of the front wave 4 of the front panel 1 is clearly defined, which is the longitudinal distance from the waistband to the crotch bottom; the length of the back wave 7 of the back panel 2 is the longitudinal distance from the waistband to the crotch bottom; and the direction of the inner seam 5 is the seam baseline from the hem to the crotch bottom on the inside of the pants. This ensures that the basic dimensions of the panels meet the standard parameters of a size 120 boy's hip circumference and waist circumference of 24-26cm and pant length of 65-68cm, providing a benchmark for subsequent precise cutting.

[0019] Mark point A at the bottom of the front wave 4 of the front panel 1; measure 1.5cm upwards along the front wave 4 from mark point A, set a first distance, and determine mark point B; starting from mark point B, extend horizontally 14cm along the inner seam line 5 towards the waistband, set a second distance, and determine mark point C; connect mark point B and mark point C to form the outline of the first splicing edge 6. This outline must be straight and without skew, with an error controlled within ±0.1cm to ensure the fit of subsequent splicing.

[0020] Mark point D at the bottom of the back wave 7 of the back panel 2; measure 3.8cm upwards along the back wave 7 from mark point D, set a third distance, and determine mark point E; starting from mark point E, extend horizontally 14cm along the inner seam line 5 towards the waistband, set a second distance, and determine mark point F; connect mark point E and mark point F to form the outline of the second splicing edge 8, which should also be straight and consistent with the length of the first splicing edge 6 to ensure that it is matched and sewn with the crotch insert 3 later.

[0021] II. Segmentation of Front and Back Fabric Pieces Along the outline of the first seam edge 6, line BC cuts the front panel 1 into two parts: the upper front panel, including the area from the waistband to mark point B, and the lower front panel, including the area from mark point B to the hem. Along the outline of the second seam edge 8, line EF cuts the back panel 2 into two parts: the upper back panel, including the area from the waistband to mark point E, and the lower back panel, including the area from mark point E to the hem. During the cutting process, the cutting scissors must be kept perpendicular to the fabric plane to avoid tilting or roughening of the edges of the panels, preventing misalignment during subsequent sewing.

[0022] Sew the upper and lower sections of the front panel together along the inner seam line 5. Ensure the inner seam lines 5 are perfectly aligned during sewing. The starting point is mark B, and the ending point is the hem. After sewing, gently iron along the seam line to smooth the seam and prevent twisting, thus maintaining the overall shape of the front panel 1. Similarly, sew the upper and lower sections of the back panel together along the inner seam line 5, starting at mark E and ending at the hem. Iron again to ensure the stability of the back panel 2's shape. The advantage of this step is that segmented sewing avoids crotch shape shifting caused by deformation after direct cutting, ensuring precise positioning of the first and second seam edges 6 and 8 when joining with the crotch insert 3, laying the foundation for a three-dimensional pattern.

[0023] III. Fabrication and Adaptability Adjustment of Bottom Insert Using the longitudinal centerline 9 of the pants, which is the longitudinal baseline for the front and back symmetry of the pants, the symmetry baseline can be determined by aligning the front center seam of the front panel 1 and the back center seam of the back panel 2. Draw the outline of the crotch insert 3 on the cutting paper: First, determine the longitudinal length of the insert, which is consistent with the length of the first splicing edge 6 and the second splicing edge 8, which is 14cm. Then, determine the lateral width of the insert based on the hip circumference thickness of a size 120 boy, that is, the lateral distance of the crotch insert 3 from the first splicing edge 6 to the second splicing edge 8, which is initially set to 4.5cm. When drawing, ensure that the outline is symmetrical about the longitudinal centerline 9 of the pants, and that the left and right sides are completely symmetrical. Also, the two sides of the insert should be straight lines with the edges sewn to the first splicing edge 6 and the second splicing edge 8, respectively, to match the subsequent straight line shape 10.

[0024] Fix the drawn outline of the crotch insert 3 onto the fabric. Use cutting scissors to cut the fabric along the outline to obtain the crotch insert 3. After cutting, trim the edges of the insert with thread cutters to remove excess threads and rough edges to prevent fabric fibers from falling off or snagging during subsequent wear. The advantages of this design are: the symmetrical crotch insert 3 ensures that the crotch of the pants is evenly stressed from left to right, avoiding the problem of shifting to one side during wear due to asymmetry, thus improving wearing stability; and the straight edges provide a basis for forming the straight shape 10 later, which is easier to sew precisely to the front and back panels compared to conventional curved edges.

[0025] IV. Overall assembly and fitting adjustments Sewing the bottom insert to the front and back panels: Use overlock stitching. Align one straight edge of the bottom insert 3 with the first splicing edge 6 of the front panel 1. When aligning, ensure that the edge of the insert completely coincides with the marked points B and C of the first splicing edge 6. The starting point of the sewing is marked point B, and the ending point is marked point C. The sewing line is 0.5cm away from the edge. Similarly, align the other straight edge of the bottom insert 3 with the second splicing edge 8 of the back panel 2. Ensure that it coincides with the marked points E and F before overlock stitching. After sewing, iron along the seam line again to make the crotch area flat. At this time, the edge of the crotch area formed by sewing the crotch insert 3 with the front panel 1 and the back panel 2, that is, the edge from the marked point B through the crotch insert 3 to the marked point E, presents a straight line shape 10. The advantage of this design is that, compared with the conventional curved crotch edge, the straight line shape 10 can reduce the accumulation of fabric in the crotch, avoid the bulky feeling caused by fabric wrinkles on the inner thigh, and at the same time reduce the influence of fabric drape on the crotch, thus solving the problem of the back crotch getting stuck in the crotch from the root.

[0026] Assembling the main structure of the pants: After completing the crotch seam splicing, assemble the other parts of the pants according to the standard procedure: Align and sew the side seams of the front panel 1 and the back panel 2, that is, the seam line from the waistband to the hem on the outside of the pants, install the waistband, sew the hem, and finally obtain the sample pants with the crotch seam.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A type of trousers with an insert crotch, characterized in that, Includes front panel (1), back panel (2), and crotch insert (3); The first splicing edge (6) is formed by extending a first distance upward from the bottom of the front wave (4) of the front panel (1) along the inner rib line (5) towards the waistband at a predetermined second distance. The back wave (7) of the back panel (2) extends upwards at a predetermined third distance from the bottom, along the inner rib line (5) towards the waistband to form a predetermined second splicing edge (8). One side edge of the bottom insert (3) is sewn to the first splicing edge (6), and the other side edge of the bottom insert (3) is sewn to the second splicing edge (8). The crotch insert (3) has a symmetrical structure, with its symmetry reference being the longitudinal centerline of the pants (9); and the crotch area formed by sewing the crotch insert (3) with the front panel (1) and the back panel (2) has a straight edge (10).

2. The insert crotch trousers according to claim 1, characterized in that, The preset first distance is 1.5cm, the preset second distance is 14cm, and the preset third distance is 3.8cm.

3. The insert crotch trousers according to claim 1, characterized in that, The front panel (1) includes an upper front panel and a lower front panel. The upper front panel and the lower front panel are sewn together along the inner rib line (5), and the sewing position is adapted to the first splicing edge (6) to keep the overall pattern of the front panel (1) unchanged.

4. The insert crotch trousers according to claim 1, characterized in that, The back panel (2) includes an upper back panel and a lower back panel. The upper back panel and the lower back panel are sewn together along the inner rib line (5), and the sewing position is adapted to the second splicing edge (8) to keep the overall pattern of the back panel (2) unchanged.

5. The insert crotch trousers according to claim 1, characterized in that, The first splicing edge (6) and the second splicing edge (8) are both located in the concealed area inside the pants. The length of the first splicing edge (6) is consistent with the length of the corresponding side edge of the crotch insert (3), and the length of the second splicing edge (8) is consistent with the length of the corresponding side edge of the crotch insert (3).

6. The insert crotch trousers according to claim 1, characterized in that, The pants with insert crotch are fitted or slightly loose-fitting and are suitable for children's sports pants.

Images